Porh Punz Battery, Artillery battery in Gâvres, Morbihan, France

The fort de Porh-Puns stands on the west coast of the Gâvres point, about 400 m west of the Saint-Gildas church. Its plan is a horseshoe, with the firing platform opening west and north toward the sea; landward access was originally cut by a moat crossed by a drawbridge. A long pale stone wall rises from the water, its base stained dark, with three arched openings on the right and a grassy bank above.

A first battery was built on the site in 1695 on the initiative of the Marquis de Lavardin, armed with 10 cannons and 2 mortars to protect the citadel of Port-Louis and the roadstead of Lorient. A fort replaced it during the 18th century, a guardhouse for 60 soldiers was added in 1846, and the fort was restored in the 1870s. It was disarmed after the Second World War and inscribed as a monument historique on 15 September 2017.

The battery shows how France sought to protect its coasts and what role such forts played in the region's daily life and security. People worked here as soldiers and engineers, and the structure represented confidence in defending the harbor and nearby communities.

The fort stands on the west coast of the Gâvres point, about 400 m as the crow flies west of the Saint-Gildas church, and is reached on foot from the village. Land access was originally cut by a moat with a drawbridge, so the outer walls are best seen from outside; the grassy crest above the water side carries a few small structures and a thin pole.

The fort's landward approach was originally cut by a moat crossed by a drawbridge, while the gun platform was laid out to the west and north because attacks came mainly from the sea. Its fire crossed with that of Fort de Locqueltas at Larmor-Plage on the opposite shore of the roadstead.